I was trying to copy some of the text in the compiler messages window in the IDE using the "Copy" option in the "Edit" dropdown a the top of the IDE. I selected the relevant text and clicked on the option. It did not work.

I tried again using the "Copy for Forum" and "Copy to HTML" options and they both worked fine. (but useless for me as they put a whole lot of extra formatting text in amongst the messages.)

In the end I used Ctrl-C, as I should have in the first place. That worked OK.

However, if the Copy option is there in the menu system, it should work.